3M Thinsulate Ultra Insulation - Thinsulate Ultra insulation is loftier and thicker than original Thinsulate insulation for even greater warmth and comfort, yet still thin enough to allow complete freedom of movement. A mid-loft insulation, it is designed for some of the harshest conditions on earth and retains insulating value in damp conditions.

Chippewa products use only premium raw materials and are hand crafted in USA. To this day, our U.S. made boots still carry the "Hand Crafted in USA" labels as homage to the men and women that have built the Chippewa brand.